It is a diagnostic screen with white type on a purple background. Purple Screen is mainly seen when the VMkernel of an ESX/ESXi host experiences a critical error, becomes inoperative and terminates any virtual machines that are running. It is not fatal and generally considered more of a developer testing issue. When encountered, it can be fixed quickly by following the simple action of pressing and holding your computer’s power button to shut down the device.
Purple Screen of Death
